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HAMBURG, GERMANY - DECEMBER 08: Two Aerospatiale SA 330 Helicopters of the German Federal Police observe the arrival of the Delegates for the summit of OCSE members states on December 8, 2016 in Hamburg, Germany. Foreign ministers and other representatives of the 57 member states of the Organization for Security and Cooperation in Europe are meeting for a two-day summit to discuss the ongoing war in eastern Ukraine and the fight against international terrorism. (Photo by Alexander Koerner/Getty Images)